An ionic bond forms between two ions of opposite charges. In ionic bonding, electrons transfer from one atom to another. The elements take on either a negative or positive charge.
Carbon dioxide, or CO2, forms a covalent bond. Any compound made up of non-metals will form a covalent bond, while compounds made of a metal and non-metal form an ionic bond. A covalent bond takes place when two atoms share electrons, thus binding the two atoms together.
One example of an ionic bond is table salt, which is the compound sodium chloride. Some other examples of ionic bonds include iron oxide (rust), calcium chloride (rock salt), sodium fluoride (toothpaste fluoride) and sodium hydroxide (lye).
H2O, more commonly known as water, is a covalent compound. This type of compound is the result of atoms, usually from nonmetal elements, sharing electrons. Water has a special type of covalent bond called a polar covalent bond.
Sugar is a simple covalent bond and it is a monosaccharide, which is the simplest form of a carbohydrate. It is one of the most common covalent bonds on Earth.
Ionic bonds hold atoms together using the electrostatic charge between their positive and negative ions. These ions are formed when electrons are transferred between atoms, the net loss or gain determining if the ion is positive, called a cation, or negative, an anion.
NaCl is an ionic compound. As an ionic compound, it possesses a crystal-lattice structure with countless ions of opposite charge that are electrically bound to each other. Ionic bonding consists of one elemental ion donating an electron to another ion that lost an electron, and binding together as a
Hydrogen, carbon and oxygen commonly form covalent bonds. There are two forms of covalent bonds, polar and nonpolar, depending upon whether atoms share electrons equally.
Sucrose is a covalent compound. Whether a compound is ionic or covalent depends on the relative attraction the compound's atoms have for electrons. Sucrose is composed of carbon, hydrogen and oxygen, all of which have similar enough attractions for electrons to form covalent bonds with each other.
The atoms involved in ionic bonding are held together by an electrostatic force of attraction between a positive and a negative ion. Ionic bonds are only formed between metals and non-metals.